Both Danish contracts run for 30 years with a 10-year extension option, and both sites already hold grid connection rights. Hesselø, in the Kattegat, is expected to reach roughly 800MW, while North Sea I Mid off the west coast carries a minimum 1GW. Vattenfall has not yet published a total investment figure, and its procurement focus now shifts to selecting turbine suppliers, installation vessel operators and balance-of-plant providers, with Rystad Energy citing a roughly 45% rise in offshore wind costs since the pandemic as a pressure on negotiations. The utility already generates 6.5TWh annually from five Danish offshore wind farms and will add a further 1.8GW, bringing its Danish fleet to seven installations.
Context
It follows Vattenfall's 13 August disclosure of the same two contracts' 30-year terms and extension option, which named the sites as a seventh Danish wind farm without published timeline or cost.
